Alnico Magnet is the alloy magnet of Aluminum, Nickel, Cobalt, Iron and other trace metal elements, which is the first generation of permanent magnet materials that developed at the earliest.
Alnico Permanent Magnet materials have the advantage of high Br (up to 1.5T) and low temperature coefficient, stable magnetic, high temperature resistance, moisture resistance and oxidation resistance. When the temperature coefficient is -0.02%/ºC, the maximum operating temperature can reach 550ºC. The disadvantage is that the coercivity is very low and the demagnetization curve is nonlinear. Therefore, although Alnico magnets are easily magnetized, they are also easy to demagnetize.
According to the production process, it can be divided into Sintered Alnico and Cast Alnico. The shape of the product is mostly round and square. Casting process can be processed into different sizes and shapes;
Compared with the casting process, the sintered product is limited to small size products. The dimensional tolerance of sintered blanks is better than that of the cast product while the magnetic properties are slightly lower than that of the cast product
Alnico is now widely used in magnetoelectric instruments, electromagnetic flowmeters, relays, teaching instruments, electric guitar pickups, microphones, sensors, traveling wave tubes, cow magnets and other fields.
Grade |
US Standard |
Br |
Hcb |
(BH)max |
Tc |
Tw |
T.C.
α(B
r) |
|
T.C. α(Hcj) |
mT/Gs |
kA/m /Oe |
kJ
/m3/
MG
Oe |
ºC |
ºC |
%/ ºC |
%/ ºC |
||
Typical
Value |
Typical
Value |
Typical
Value |
Typical
Value |
Typical
Value |
Typical
Value |
Typical Value |
||
LN10 |
ALNICO3 |
600/6000 | 40/500 | 10/1.25 | 750 | 550 | -0.02 | -0.03~-0.07 |
LNG10 | 600/6000 | 44/550 | 10/1.25 | 750 | 550 | -0.02 | -0.03~-0.07 | |
LNG12 |
ALNICO2 |
700/7000 | 44/550 | 12/1.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNG13 | 680/6800 | 48/600 | 13/1.63 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNG16 |
ALNICO4 |
800/8000 | 48/600 | 16/2.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNG18 | 900/9000 | 48/600 | 18/2.25 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNG37 |
ALNICO5 |
1200/12000 | 48/600 | 3714.63 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNG40 | 1230/12300 | 48/600 | 40/5.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNG44 | 1250/12500 | 52/650 | 44/5.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNG48 |
ALNICO5DG |
1280/12800 | 56/700 | 48/6.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNG52 | 1300/13000 | 56/700 | 52/6.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNG56 |
ALNICO 5-7 |
1300/13000 | 58/720 | 56/7.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNG 60 | 1330/13300 | 60/750 | 60/7.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 28 |
ALNICO 6 |
1000/10000 | 56/700 | 28/3.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNGT 30 | 1100/11000 | 56/700 | 30/3.75 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 18 |
ALNICO 8 |
580/5800 | 80/1000 | 18/2.25 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNGT 32 | 800/8000 | 100/1250 | 32/4.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 38 | 800/8000 | 110/1380 | 38/4.75 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 44 | 850/8500 | 115/1450 | 44/5.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 48 | ALNICO 8 HE | 900/9000 | 120/1500 | 48/6.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNGT 60 |
ALNICO 9 |
900/9000 | 110/1380 | 60/7.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNGT 72 | 1050/10500 | 112/1400 | 72/9.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 80 | 1080/10800 | 120/1500 | 80/10.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 88 | 1100/11000 | 115/1450 | 88/11.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 96 | 1150/11500 | 118/1480 | 96/12.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT 36J |
ALNICO 8 HC |
700/7000 | 140/1750 | 36/4.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 |
LNGT 48J | 800/8000 | 145/1820 | 48/6.00 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
LNGT52J | 850/8500 | 140/1750 | 52/6.50 | 800~850 | 550 | -0.02 | -0.03~-0.07 | |
Note
:
Curie
temperature
and
temperature
coefficient
are
only
used
as
reference
,
not
as
judgment
criteria . Customers have special requirements , can be customized accordin g to customer requirements. |